First two monochords, Multiple Zither with hanging nodal locators, Fulton Street Studio, 1978
Tomba Marina, Cellos with Metal Frets in development, Brooklyn Docks Studio, 1982
Tromba Marina, Aluminum Bass with metal frets, Brooklyn Docks Studio, 1983
Excited String Bass with Harmonic Markings, Fulton Street Studio, 1979
Long Zither with Magnetic String Drivers (Ebows), Experimental Intermedia Foundation, New York, 1980
Partch Harmonic Canon, Fulton Street Studio, 1977
Hurdy Gurdy with tuned tangents, Sackett Street Studio, 1980
Miniature Pianoforte keyboard, Fulton Street Studio, 1978
Excited Strings Bass with extended neck and (planned) sympathetic strings, Sackett Street Studio, 1980
Studio, Middletown Ct., 1981
Studio, Middletown Ct., 1981
Studio, Middletown Ct., 1981